Tablets and E-Readers are portable battery operated platforms having diverse power conversion requirements due to multiple features and function that operate simultaneously along with large LCD display backlight power concerns. Since these devices are primarily battery powered, good power conversion efficiency is necessary to extend operating times between charging cycles. As with all portable products, internal circuit board component density and height requirement force the smallest total solution sizes for power management devices. Kinetic Technologies offers solutions to meet tablet and e-reader needs for lighting and display, camera flash, power interface protection and DC/DC power conversion.

Tablet and e-reader devices have large displays that consume the most significant portion of the device battery power budget. Display backing power management solutions must provide high power conversion efficiency with flexible dimming control to maximize battery life between charge cycles.

WLED brightness control current sinks have tight linearity characteristics for high accuracy LED current over a wide range of dimming levels and input supply.

Multiple series/parallel WLED strings require DC-DC boosted voltage supplies, which must have high power conversion efficiency to maximize battery life.

WLED drivers offer external control and programming options from PWM signal to full featured I2C interfaces to fit a wide range of product display sizes, feature requirements and processor capabilities.

Tablet and e-reader battery powered products require and external interface for power and charging. These devices utilize large capacity Li-Ion batteries, which are charged at significantly high charging current level and require a stable power source.

Tablet and e-reader devices often use multicolor RGB LEDs as function indicator lamps or fashion lighting features. RGB LED drivers allow for simplified programmable control of LED color and brightness in an ultra small footprint package.

Tablet and e-reader products typically operate using highly integrated system power management IC’s. In some cases point of load application circuits such as camera modules or Wi-Fi/Bluetooth transceiver modules are located a distance away from the centralized PMIC and need local regulation. In other cases a specific voltage rail may be unavailable.

A voltage regulator can supply a local voltage rail with high efficiency at the point of load.

New generations of Tablets and e-Readers require increasing levels of features, performance, control and smaller board space. System Power ICs increase the control, performance by integrating multiple functions in a single IC which decreases the overall board area.